Question 1

What is HCPCS code G9143?

Accepted Answer

HCPCS code G9143 is "Warfarin respon genetic test". Warfarin responsiveness testing by genetic technique using any method, any number of specimen(s)

Question 2

What category is G9143 in?

Accepted Answer

G9143 belongs to HCPCS Category G (Procedures/Professional Services).

Question 3

When should I use HCPCS code G9143?

Accepted Answer

Use G9143 when billing for warfarin respon genetic test. HCPCS Level II codes like this are used for items and services not covered by CPT codes, including medical supplies, equipment, drugs administered in clinical settings, and certain healthcare services.

Question 4

Is G9143 covered by Medicare?

Accepted Answer

Coverage for G9143 (Warfarin respon genetic test) depends on medical necessity and specific Medicare guidelines. Check the applicable Local Coverage Determination (LCD) or National Coverage Determination (NCD) for detailed coverage criteria. Private insurers may have different coverage policies.

Question 5

What documentation is required for G9143?

Accepted Answer

Documentation for G9143 should include: the medical necessity for the item or service, supporting diagnosis codes (ICD-10), prescription or order from the treating physician, and proof that the item meets quality standards. Some items may require additional documentation like a Certificate of Medical Necessity (CMN).